Signal-box.



F. W. COLE.

SIGNAL BOX.

APPLICATION FILED NOV. 24, I915- Patented Jan. 2, 1917.

gmM-M 5f nism is operating. In silent UNITED s'rA'rEs PATENT omen.

FREDERICK W. COLE, F NEWTON HIGHLANDS, MASSACHUSETTS, ASS IGNOR TO GAME- WELL m1: ALARK TELEGRAPH COMPANY, OF NEW YORK, N. Y.', A CORPORATION or new YORK.

Be it known that I, FREDERICK W. Com, a citizen of the United States, residingat Newton Hi hlands, in the county of Middlesex and tate of Massachusetts,have invented an Improvement in Si which the following is a specification.

In fire-alarm signal-boxes, as usually con- 'structed, the several instrumentalities contained therein, such as the signaling-mechanism, non-interference magnet, manual-key and sounder, are adapted to be arranged in I the box-circuit in series relation when the box door is open and the signaling-mechay testing these boxes, it is customary to change the relative arrangement of these instrumentalities, by

dividing the circuit, so that the sounder or bell-magnet, shall be arranged in one 1 branch, and the other instrumentalities, in-

cluding the signaling-mechanism, shall be arranged in another branch, or in other words, the sounder and the other instrumentalities shall be arranged in multiple relation. Such change is or may be accomplished by making electrical connections be tween the terminals of the box-circuit and points in said circuit between the sounder and the other instrumentalities, so that the current has two paths, in one of which the sounder is included, and in the other of which the other instrumentalities are included, and then opening the box clrcuit between said points of connection. When the arran ement of the box circuit is thus effected, the box may be tested by operating the signaling-mechanism in the regular way, the sounder correctly responding to the regular signal, but said signal is not sent overthe main circuit.

This invention has for its object the construction of a switch-elementwhich is made as a unit, it having a single operating-' member adapted when in one position to arrange the box-circuit in normal condition with the several instrumentalities arranged in series relation therein, so that the box may be operated and'the signal sent over the main-cirbuit in the regular way; and when ii in another position to rearrange the boxcircuit to form two branches, one branch inal-Boxes, of

smimn-nox.

1,210,765. Specification of Letters Patent Patented J an. 2, 191 '7.

' Application filed November 24, 1915. Serial R 0. 88,823.

To all whom it may comm: I cluding the signaling-mechanism, non-interference magnet, and manual-key, and the parts being in their normal position. Fig.

Fig. 3 is' 2 is a side elevation of the same. a bottom plan view similar to Fig. 1, the parts being moved into position to make electrical connections with the box-circuit preparatory to'opening said circuit, so as to maintain the continuity of the main-circuit. 'Fig. 4 is a similar bottom plan view, the parts being'in positionto open the boxcircuitbetween the instrumentalities contained therein, so as to arrange said instrumentalities in multiple relation. Fig. 5 is a diagrammatical view of a fire-alarm box-circuit and the instrumentalities ordinarilycontained therein and having a testing-swit'ch embodying this invention.

10 represents the box-circuit having its terminals at 11 and-12, respectively, the terminals of'the main-circuit 15 being connected with said terminals 11 and 12. In

said box there is connected, as here shown,

the ordinary instrumentalities usually provided. in a fire-alarm box, as for instance, the signaling-device 20, indicated by the signal-wheel and signal-key, the non-interference magnet 21 and the sounder 22, or in lieu thereof a bell ortapper-magnet. This box-circuit is normally closed and forms a part of the main signal-circuit, and the several instrumentalities are arranged in series relation therein, although shunts are usually provided for some or all of these instrumentalities, adapted to be opened by the opening of the box-door,. or to be operated by the signaling-mechanlsm, but as said shuntsform no part of the present invention they are not herein illustrated, es te ell in-= tents and purposes, when testing; the leer:

malty iii Q1 e the lJUX-(lOQP is opened we ttl] such time these instrumentalities are ermiqgedl in series reletien.

For the pui'pese cf silently testing the box, it is herein olesigeecl t0 i'eei'tenge the several in'sttiimentalities to btingthem iiite multiple 'iei time certain of instrumentelities being arranged in one breech thereand others in another breech thereof, effect -t Witlic'ait ewitcii here siiewii,

er Wires fi ed, respectively; Witt 15. at eee enti and the leezeiteiiit peiiits between the cee meet, eiizi e st 1ft)? melting @6111? e teereeiter opening the heme;

" tween. eezrmected eiiits.

Le unitei'y swig element lF. G slietvii ee arises base ll), e pair ct eel met-member I W, here hown resilient centeet-peiis med tlietete at anti letting their tree e ids sepetetetl sliei'teiistame and teiigetl tier movement laterally iii flitt-Efltlttlt away item eecli r, else W pair at similet y-eeiisttue eel ee iiiei lOElFS e l Weclieul w; eee eeti the tsetse, at meeting iillelt ti ttiffatlllgfitl fer met/en r tien ewey teem eecii eteei? to contec ens' 4%; we Ji 51$ sheet, and e eeeteet-pens 423 414: q

r37 Veiy, the pens ell 42, we insicle 0t 01 pens 43, it, encl in the same plane, s0 as the we 41, 422 me-vetl laterally L l1} m e clitectiee away ti'emeeeh ether teey engage, respectively, the adjacent pets 13 44-, spelt l'i'iiitllei mete l-g The switch-element COHlPElSES seeiiieel to mid stem by which t0 Slit it) it letsgitiiiiiiieliy, and e letemlly extended lug" it, lee-ting e etitvett eiigegingtece, This is errengeil between th e GUHTDSW J YLQMBBTS all i-Q3, emit is e epted by e, slicling movementof the plunger? eii outwetci diteeticii t0 ensaiel cciitect-mem eets end mete them letemlly inte engagement with the coeteetme in same direction te eeus-e eeicl centaet- 7 members 41 end 42 mete teeth-etc laterally and t0 cqrrespenclingly move laterally and eeperete the weteetteemters t8 and 4: 3; circuit-Wires end 31 me wettest-9&

will cause the sepetetieii elf said pens ers 4-3 and b tuithei movement Leiefiet iespeetively; to the contact-members i2 angl 41, eiiet the cement-members 413 end it er cemtiecteci tlie TOOK-31t't3l31l3, and settle to mamtem'se'ielcitcmt closed at this paint "Ellis switch-element is essecieted Witt the bex-citcuit at a paint between the signalingcieviee emit eon-interference megiiet en'the eiie sicle emit tlie semeeler OI ether signal-x3espeneliiig instrument on the Etha /E side, and when he plunger is epemtecl, these institutmeeteiities "which "were in series teei'ieegeel multi le teletiet eei'i tie-e ceetii'iiiity ef the circuit meim teed, it will be eeteei cii'eiiit eem 3t) 31 are first cemieeteel with. lt2-lffcuit e eersteet-memieets tl, 4E2, 811'? teemlsers t3, t4, tls

etiecl Teetweem ee c s eliinget is me cl M ly resteteel 1e hexleer iiiilese by liailfiio 3-0 ei'e" 'ee 54] and t me'v'etl teirw ie is iii eliielet switch bel es eeiiipri eg e; e

eemieeteti the line eitci it eiic e in Elfig emeiit, a, pen" e t. eiigezi eeiiteet-peiis eiiei etleptel meet teem net'mel te enga enel se eei'ete seitl I by te ceiiiiect breech reletieii with teiei eg the continuity eif t 1e eireu epemtiiig-memleet tl tei slieit eeiitec" K s letetelly.

1 leteiel sieve move i'eteielly, act-pets teeteeitciiits lit multiple s cempri eemiecteel with the line eircuit enel manually in engagement pair e3? eiiett centaet'pee cennectecl with trench circuits mete-s9. separated and arranged between said long eonteet-pens and eclapted upon letei'el move-4 meet from netmel to engage meve tater ally, and separate said lemg eentect-pees, thereby to eetmect the circuits pellets iestmmentelities the line meie- 1 I we "W e pen el meg ce-iiteeireeise multiple relation with the line circuit, while name to this specification, in the presence of maintaining the continuity of the circuit, two subscribing witnesses.

and a slidin operating-member having an outstanding lug arranged between the short FREDERICK COLE 5 contact-pens to move said short contact-pens Witnesses:

laterally. B. J. NOYES, In testimony whereoi, I have signed my H. B. DAVIS. 

